Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
17/04/2026, 04:35
Behavioral task
behavioral1
Sample
2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
- Size 1.1MB
- Sample260417-e7n7xsaw41
- SHA256 1e85917653dc068b61f479901939a09d08e751fb2bb8d9e91b14fdd3a535658c
- MD5 b339ed6242e3e191d8987a237867dd4c
- SHA1 d8943887f3e9497cd846c38f947fac76da4ddfc4
- SHA512 0427c9d7ab597a46d1d1e163f14606c0ca878e58cd494bb0ed2288b73d2a1b773f71f27725693bdc11fe0e71bf4eaa78bd419216dee2251a6a9992017beb396c
- SSDEEP 12288:ISvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidzN/VTg:DvO2xJKRw2kOkx2LFRvcU6UQOJdM
- TLSH T12E357C31A681C036D5B34571C6FA4BBBA9747D25131165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x001d00000002b2a0-3.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x001d00000002b2a0-3.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral2/memory/1848-0-0x0000000000D40000-0x0000000000DCC000-memory.dmp UPX behavioral2/memory/4632-4-0x0000000000F60000-0x0000000000FEC000-memory.dmp UPX behavioral2/files/0x001d00000002b2a0-3.dat UPX behavioral2/memory/1848-18-0x0000000000D40000-0x0000000000DCC000-memory.dmp UPX behavioral2/memory/4632-21-0x0000000000F60000-0x0000000000FEC000-memory.dmp UPX behavioral2/memory/4632-43-0x0000000000F60000-0x0000000000FEC000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4632 4b8ea24e - Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 1 114.114.114.114 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 2 223.5.5.5 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 16 114.114.114.114 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Destination IP 17 223.5.5.5 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\4b8ea24e 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 4b8ea24e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4b8ea24e -
resource yara_rule behavioral2/memory/1848-0-0x0000000000D40000-0x0000000000DCC000-memory.dmp upx behavioral2/memory/4632-4-0x0000000000F60000-0x0000000000FEC000-memory.dmp upx behavioral2/files/0x001d00000002b2a0-3.dat upx behavioral2/memory/1848-18-0x0000000000D40000-0x0000000000DCC000-memory.dmp upx behavioral2/memory/4632-21-0x0000000000F60000-0x0000000000FEC000-memory.dmp upx behavioral2/memory/4632-43-0x0000000000F60000-0x0000000000FEC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4f4d30 4b8ea24e File opened for modification C:\Windows\1fa370 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4b8ea24e - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 4b8ea24e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 4b8ea24e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 4b8ea24e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 4b8ea24e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 4b8ea24e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 4b8ea24e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 4b8ea24e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 4b8ea24e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 4b8ea24e - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4632 4b8ea24e 4632 4b8ea24e 4632 4b8ea24e 4632 4b8ea24e 4632 4b8ea24e 4632 4b8ea24e 4632 4b8ea24e 4632 4b8ea24e 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Token: SeTcbPrivilege 1848 2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe Token: SeDebugPrivilege 4632 4b8ea24e Token: SeTcbPrivilege 4632 4b8ea24e
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-17_b339ed6242e3e191d8987a237867dd4c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1848
-
C:\Windows\Syswow64\4b8ea24eC:\Windows\Syswow64\4b8ea24e1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4632
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\4b8ea24e
- Size 1.1MB
- SHA256 da2502579e3a9b5222447a50eb9ff530f97ffe1b6d157fa274ccf9096129fd3b
- MD5 19ab00f56806795b411f7d540f313019
- SHA1 4bb28a08b1bc2885d551d82649992d3bc1c6f56a
- SHA512 b54b7c8ba4837b6fa5e83659dc1a3ba6b8ae0d1139d33d76a10d4916c0f967de160ccdb74bf673a7d6aee2d66adcd24abd6358ddd41c29c27b8b4fa41fc5b12d
- SSDEEP 12288:kSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidzN/VTg:XvO2xJKRw2kOkx2LFRvcU6UQOJdM
- TLSH T159357C31A681C036D5B34571C6FA4BBBA9747D25131165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH